Coffee-roaster.



No. 757,743. PATENTED APE. 19, 19,04.-

;f. E.' EEEEIOTT. COFFEE EOASTEE.

- APPLIUATION FILED 0015.22, 1903.

rgN0 MODEL. Y l 2 SHEETS-SHEET l.

WITNEEEEE 7 @www 10.757,743. 1 -f 'PATENTEDAPRM11904.

' J. E. HBRRIOTT..

COFFEE ROASTER.

Arrmo'ulon Hmm 0mm. 1903.

1ro Komm. f s summe-snm 2.

www#

UNITED STATES JoHNn. HERRIOTT, or KANSAS CITY, KANSAS," AssIGNoR or ONE-HALF To Patented April 19, 1904.'

IATIEIWT` OFFICE.

' ALEXANDER e. LAUTHERS, or KANSAS CITY, KANSAS.

SPECIFICATION forming parier Lettere Patent No.` 757,743, dated April 19, 1904.

Application filed October 22, 1903Iv Serial Noi 178,095. (No model.) i

To a/ZZ whom, t 1v1/ty con/cern:

Y Beit known that I, JOHN E.Y HERRIOTT. a citizen of the United States, residing at Kan-A sas City, in the county nof Wyandotte and State of Kansas, have invented new and useful Improvements in Coffee-Roasters, of `Which the following is a specification.

My invention relates to a'combined portable furnace and coffeeroaster; and the object of producing a coifee-roaster of the kind is that it can be moved from place to place without having to take it to pieces for that purpose. Another object that I accomplish by such a coffee7roaster is that the coffee can be roasted and at the Same time the oil in the grains canbe retained therein and not destroyed` as is the case with most of the coffee-masters at the present time. I accomplish this in the peculiar manner in which I construct the cylinder that retains the coffee while it is being roasted by first making a suitable cylinder of heavy sheet `metal, galvanized iron being preferable. I

then place on the inside of the cylinder a layer of lire-clay, and on the inside of the fire-clay I place a heavy layer of soapstone.V The heads of the cylinder are constructed in the same manner.

Referring now to the accompanying drawings, Figure 1 is a longitudinal sectional view of my invention, disclosing the manner in which the furnace is constructed and the position of the roasting-cylindezfl in the furnace. Fig. 2 is a cross-sectional view talen on line4 AAof Fig. 1, disclosing'more clearly the manner in which the roasting-cylinder` is constructed. Fig. 3 is a vertical section taken on line B B of Fig. 1 between the 4inside of the rear end of the furnace and the outside head of the rear end of the roasting-cylinder, disclosing perforations through the cylinderhead and perforations through an inner Wall of the furnace, which admits of smoke from the inside of the roasting-cylinder to escape therefrom and pass outward up the flue'of the cylinder. Fig. 4 is the rear end of the furnace. Fig. 5 is a cross-sectional view taken on line C C of Fig. 1. Fig. 6 is a broken longitudinal section ofa removable piece of the roasting-cylinder adapted to be taken out through the cylinder.

lend of said shaft 12.

referring to corresponding numerals on the.

drawings and specification, in which-v 1 is a vertical sectional view of the furnace; i` Whlch 1s' rectangular 1n plan, having an ex-l tended portion 2, 3 being the top'. Throughll V'the'top and central thereof is Aa rectangular openingd.Y The object of the projecting front end E2 is to provide for grates 5 and an ash-v pan 6. The lire-space is provided with a door 7. I At the rear of the fire-space isa box8.

The object of this box is to receive thecoffee after it is browned. Immediately over the re-space is a heat-reflector 9. The object of this defiector is to carry the heat more directly' under the roasting-cylinder, which will be.

fully described farther on.l Overthe deector and at an angle of about forty-five degrees is a. drooping shed portion 10, forming thefront l and cover of the furnace over the lire-Space. This shed portion 10 further forms a supporting-truss which will prevent sagging, which would otherwise occur from the weight of the roasting-cylinder. i

vertically secured tothe in ner edge of the deiiector and at the junction of the shed 10 is rigidly secured a journal-seat 111, .which sup-` ports the front end of the shaft 12, passing At the rear end ofV he furnace I have provided a piece of sheet metal 13 ofl equal dimensions Vto the'siZe of the furnace above the box that receives the parched coffee. This is l In the rear end of the furnace I have provided a removable circular end 15, which is secured to the furnace by bolts 1 6. On the inside of this removable end is a reinforced portion 17, which forms the journal-bearing to the outer The roasting-cylinder 1.8l is horizontally suspended on the shaft 12 on the inside of the furnace, as shown, and is adapted to be roof the fire-clay is another layer,22,constructedv of soapstone, and in order that the soapstone layer may be firmly secured against the layer of fire-clay I make it in the form of barrelstaves, as shown in Fig. 2.

The staves are designated 23, four of them projecting outward, as shown, about twice the thickness of the others. The object of these projecting staves is to more effectually agitate and stir the coffee as the cylinder revolves. I have constructed this cylinder so that the portion of one of the staves (designated 24) can be removed and replaced at will. The object of this removable section is to form an opening in the cylinder to admit the unbrowned coee to enter the cylinder and the browned coffee to be taken from the cylinder after the browning process is performed. I have pro-A vided the heads 25 constructed of the saine material and `in the same manner. The head in the rear end of the cylinder is provided with perforations26. The object of these perforations is to let the smoke occasioned by the browning process of the coEee to escape from the cylinder. It passes out of the cylinder through these perforations between the inner head 13 of the furnace and the outer head 15, then upward in the direction of the arrows through perforation 27 to the smoke-stack, as indicated In order to hold the rear head of the cylinder secure, I have provided iron rods 28.'

These rods are secured to the projecting ends of the metallic outer portion of the cylinder, as shown. The removable portion 24 of one of the stave-sections of the cylinder is` in the form of a dovetailed block; but its sides and the two ends lit snugly when replaced in the cylinder. AtFigs. 6 and 7 I have shown sections enlarged, so that this removable piece may be readily understood. 'Io secure this section to the cylinder, I have provided a T- y shaped bolt 29, which is pivotally secured through the removable section 24, the outer end of which is provided with an eye 30. When the removable section 211 is to be removed, the bolt 29 is turned in the opposite direction from that as shown in Figs. 6 and 7.

At the rear end of the furnace I have pro- `vided a door 31, which closes the opening removed and the hopper is inserted.

through which the box 8 is inserted to catch the browned coffee when emptying from the browning-cylinder. I have further provided a longitudinal rectangular opening in the top of the furnace correspondingly of the size of the opening in the browning-cylinder.

I have further provided a hopper 32, whichengages said opening and extends downwardly to or near the outward surface of the roasting-cylinder. When the cylinder is to be filled with the green coffee, it is turned around until the removable section therein stands fair with the hopper 32 and the opening in the top of the furnace. The removable section is then rl`he coffee is then emptied into the cylinder through the hopper, the removable section replaced, andthe T-shaped bolt 29 turned as indicated in Fig 7, when it is made secure therein.

To close the opening in the top of the furnace when the hopper 32 is removed, I have provided a trap-door 3,3, which will it snugly over the opening and prevent combustion from passing out through the opening.

Having now fully described my invention, what I claim as new, and desire to secure by ALetters Patent-of the United States, is-

' 1. In a coffee-roaster of the character described, the combination of a furnace, a rotating cylinder mounted in the furnace, constructed of metal, fire-clayand soapstone, a removable section in the periphery of the cylinder, an elongated opening in the top of the furnace, a hopper adapted to engage said opening and correspondingly engage over the removable section in the cylinder, a {ire-bed in the lower front end of the furnace and a combustion-discharge pipe on the top rear end of the furnace adapted to cause the heat to en-y velop the cylinder on its exit from the lirebed to the combustion-pipe, substantially as described.

h 2. In a coffee-roaster of the character described, the combination of a furnace, a rotating roasting-cylinder composed of soapstone, fire-clay and metal mounted in the furnace, an inward sheet-metal head 13 supported JOHN E. HERRIOTT.

Witnesses:

MATILDA L. LANGE, JAMES F. YEAGER.

IOO

IIO 

